The Melling High Performance Oil Pump (part number 10550ST) is a direct-fit replacement for 1957-2004 Chevrolet, GMC, Pontiac, and Cadillac vehicles. 10550ST High Performance, High Volume, High Pressure, Billet Steel Oil Pump
Features:
- High volume performance upgrade for M-55HV.
- 25% increase in volume over standard oil pump.
- Housing and cover are CNC machined and phosphate coated.
- Includes installed +10 psi higher pressure relief spring and optional -10 psi relief spring.
- Includes 12550 chrome moly intermediate shaft with steel guides.
- Billet steel "Shark Tooth" helical gears.
- Uses 5/8" diameter press in screen.
Specifications:
| Product Grade | Performance |
| Manufactured For | GM SBC |
| Upgrade for Pump Number | M-55HV |
| Optional Spring Pressure 1 | (Yellow) 58 PSI |
| Manufactured Pressure | (Green) 70 PSI |
| Screen Information | 5/8" Press In |
| Bolts Included | No |
| Bushing Included | No |
| Cotter Pin Included | No |
| Cover Material | Cast Iron |
| Gears Included | Yes |
| Governor Spinner Included | No |
| Inlet Size (mm) | 16.00 |
| Nylon Bushing Included | No |
Fits: 1957-2004 Chevrolet, GMC, Pontiac, Cadillac, and Oldsmobile models including Corvette, Camaro, Caprice, Impala, El Camino, P30, Blazer, G30 and more. Confirm your year, make, model, and engine before ordering.
Fitment Notes: 25% Higher Volume High Performance Oil Pump; 10 PSI Higher Pressure Relief Spring Installed; Exclusive Billet Steel Shark Tooth Helical Pump Gears; Includes 12550 Chrome Moly Steel Intermediate Shaft With Steel Guide; Includes Optional Standard Pressure Spring; Uses 5/8 Inch Diameter Press-Fit Pickup Tube Assembly (Not Included)
